Fiber container.



R. S. REYNOLDS.

FIBER CONTAINER.

APPLICATION FILED ocr. l2. l'9l8.

Patented Apr. 1,1919. I

ATTORNEY drel, care having to be exercised to prevent UNITED STATES PATENT OF 3101mm) SAMUEL REYNOLDS, or LoinswLLE, KENTUCKY.

FIBER. CONTAINER.

Specification of Letters Patent.

Patented Apr. 1,1919.

Application filed October 12, 1918. Serial No. 257,832.'

. To all whom it may concern:

Be it known that I, RICHARD S. REYNOLDS, a citizen of the United States, residing in the city of Louisville, county of Jefferson, and State of Kentucky, have invented certain new and useful Improvements in Fiber" Containers, of which thefollowing is a specification. This invention relates to fiber containers of the cylindrical type and more especially that class which is built up of numerous layers of fibrous material conjoined with an adhesive.

Tubular fiber containers .are made by wrapping a rectangular sheet of suitable material about a form ormandrel, the diametc;- of which is the same as the inside of the tube to be made, the free end of the sheet being secured to the outer convolution by suitable means such as an adhesive.

When it is desired to produce a more rigid tube the adhesive is applied to all of that portion of the inner surface of the sheet which will come into contact with the outer surface thereof when rolled about the manany of the adhesive getting on that portion of thesheet which contacts with the mandrel, otherwise'the tube would adhere thereto and render removal therefrom difficult, without damaging the tube. A number of mandrels have to be provided as it is necessary for the tube to remain thereon until the adhesive has set. This method is carried out by hand, and does not lend itself to quantity production. Machines have been devised to spread the adhesive on the sheet and other machines to wrap the sheet about the mandrel, but the sheets must be fed to the ma chines by hand-and the adhesive must be slow setting or else when the'sheets reach the wrapping machine it will not adhere,

consequently the machine method is not altogether satisfactory. A method has been de-v vised in which continuous strips of material are employed. A strip is wound spirally upon a mandrel, and a second strip, having an adhesive applied to its inner surface, is-

wound upon the first, covering the contiguous edges of the first strip; This method is adapted to quantity production as it is continuous. The mandrel is supported only at one end and the completed portion of the tube is pushed off of the free end of the -mandre1 in acontinuous length as fast as formed. A quick setting adhesive may be used, and the mandrel be of such length that the adhesive will be set by the time the end of the mandrel is reached, when the tube will be self supporting, that is the extend mg portion will not sag of its own weight. The tube is then cut into desired lengths.

The spirally wound tube lends itself to quantity production but is objectionable from other view points. It does not present a smooth exterior as does the straight wound tube. Each strip used, presents at each end,

two corners which present initial points for disintegration, and the gap between adjoinlng edges of the respective convolutions offer lodgment for extraneous matter, and points of engagement for projections with which it may come in contact.

An object of my invention is to provide a container as characterized, which shall be economical in manufacture and durable in servlce.

A further object is the provision of a method for forming .a container, such as characterized, on a quantitative basis.

Withthe foregoing and other objects in view, the invention consists of the novel method of construction illustrated in the accompanying drawing which forms a part of this specification, wherein is set forth an embodiment of the invention, but it is to be understood that such changes-and modifi-' cations may be resorted to as come within the scope of the claims appended hereunto.

In the drawings, wherein similar reference characters designate like parts in the several views; Figure 1, is a diagrammatic planshowing the method of forming the spirally wound core: Fig. 2, a diagrammatic plan showing a method of applying the outer layersto the core: Fig. 3, a side elevation of the core; Fig. 4, a perspective view of a tube wound spirally, the lead strip .12 being wound direct upon the mandrel, the following strip 13, being wound upon the lead strip in such relationship theretothat it Upon .this mandrel two strips covers the joint between the convolutions thereof. An adhesive 14- is applied to the inner surface of the second strip by suitable means, such as a roller 15 just previous to its coming into contact with the lead strip. The process of winding, pushes the end of the mandrel is reached. As the tube projects beyond the mandrel, a cut off tool 16 swinging on an axis 17-- is brought to bear against it severing it into desirable lengths to serve as cores 18 for the container. The core, 18, is then placed upon a mandrel .20- of a winding machine (see Fig. 2) and a web 21 of suitable material is led thereto from a supply roll '22. The web of paper passes between two rollers 23, 24 by means of which it is drawn from off the roll 22, and

pushed forward between two other rollers 25, 26. A reservoir, or font 28 con tains a' suitable adhesive which is fed on to the periphery of the upper roller 25 which in turn deposits it on the surface of the web. From the rollers 25, 26 the web, now coated With adhesive, passes over a plate 27 which guides it into engagement with the core 18, on the mandrel 20. A pluralityof spring pressed rollers 30, 31- bear upon the outer surface of the web as it' is wound on the core, thereby insuring uniform contact and adhesion between the layers thereof. When a desired number of layers have accumulated on the core, the web is severed at a point along the plate 27. The container removed from the mandrel, another core placed thereon and the operation repeated. The container is a finished product for some purposes as it comes from the mandrel of the winding machine. Other purposes require closed ends. These may be applied in any desired manner. In Fig. 6, I have illustrated a closure, .or cap 35- as applied to the end of a container. It comprises a center portion which is bounded by an annular channel 36'- adapted to fit over the ends of the container. When so fitted on the container, pressure is exerted on the inner and outer walls .37, 38- bounding the chan-v nel 36, forcing them against the body of the contain enwalls forming a permanent water tight joint. The web 21, may be of fabric suited to the use to which the container is" placed. In making a water proof container I prefer to use a felted material impregnated with an asphaltic compound and an adhesive which is fluent by fusion only.

To use anadhesive which is fiuent by fusion, means are provided to heat the font 28, said means comprising a gas. plpe 32 pro- I v vided with nipples or burners The arrangement described" herein for winding both the core and body of the container are If illustrative only as any suitable means may be employed for the purpose.

Having thus described my invention so 'that anyone skilled in. the art pertaining thereto can make and use the same,

I cla1m: I 1. A fiber contalner comprlslng an inner spirally wound section of even diameter throughout its length, and an outer convolute section conjoined therewith by a water' length and an outer convolute layer adher- 4. A fiber container comprising a spirally ent to and covering substantially theentire v wound .core ,of even diameterthroughout its I length and a convolute layer adherent thereto.

5. A cylindrical receptacle comprising a.

spirally wound core having an outer adherent convolute layer covering substantially its entire surface. 1

6. A cylindrical receptacle eomprisingan inner spirally wound core section presenting a substantially smooth surface throughout its extent, and an outer convolute section conjoined therewith.

7. A cylindrical receptacle comprising an inner spirally wound section and an outer convolute section, said sections each comprising a plurality of layers the inner 'surface of each overlying layer being in contact throughout substantially its entire extent with an underlying layer.

8. A cylindrical receptacle comprising a spirally wound core presenting a smooth exterior surface and a plurality of convolute layers of fibrous material conjoined. by means of a water proof adhesive compound which becomes adhesive solely by fusion.

4 9. A cylindrical receptacle comprising a core consisting of a plurality of spirally wound layers and a plurality of superimposed convolutions, each of said layers and convolutions being adherent throughout substantially its entire area to an underlying layer or convolution.

10. A. cylindrical an inner spirally wound section and an outer convolute section conjoined by an adhesive compound which becomes adhesive solely by fusion. r

11. A cylindrical receptacle comprising receptacle comprising an inner spirally wound section and an outer convolute section conjoined by a water proof adhesive compound which becomes adhesive solely by fusion.

r 12. A cylindrical receptacle comprising a core consisting of a plurality of spirally wound layers of fibrous material and an outer portion consisting of a plurality of convolutions of 'fi'b'rous sheetssaid layers and convolutions conjoined with an adhesive compound which'becomes adhesive solely by fusion.

13. The method of forming a cylindrical I receptacle consisting in forming a core of 15 placing said core on a mandrel, and superspirally wound strips of fibrous material,

imposing thereon a plurality of convolutions of a sheet of fibrous material, conjoining v placing said core on a mandrel and superimposing thereon a plurality of convolutions of a sheet of fibrous material coating the inner surface of said sheet continuously with an adhesive as applied, and applying pressure to said convolutions as applied whereby they are conjoined with the .core and with each other.

RICHARD SAMUEL REYNOLDS. 

